Surface properties of textile cellulose as a function of processing steps

Karin Stana Kleinschek, Volker Ribitsch*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Natural cellulose fibers comprise several non-cellulose compounds and cationic trash which causes problems during different adsorption processes such as dyeing, printing, final fiber finishing and coating. Therefore the pretreatment (classical NaOH, demineralization, oxidative bleaching) is the most important step in cellulose textile finishing. Alternative ways to describe the success of different processes in fiber pretreatment which result in distinct surface charge and hydrophilicity are the determination of electrokinetic properties and the water uptake of fibers and textile materials. The zetapotential was determined by streaming potential measurements as a function of the pH and the surfactant concentration in the liquid phase. The water uptake was observed measuring the changes of the ultrasound intensity caused by the water penetration into dry cellulose fabric. The degradation and removal of hydrophobic non-cellulose compounds which cover the primary hydroxyl and carboxyl groups of the cellulose polymer is clearly shown by an increase of the negative ZP. This observation correlates well with the penetration measurements showing improved hydrophilicity for example after NaOH treatment or extraction. The progress of the fiber processing (cleaning, pretreatment) is reflected by the surface charge as well as the hydrophilicity of the fiber.

Original languageEnglish
Pages (from-to)157-165
Number of pages9
JournalProgress in Colloid and Polymer Science
Volume101
Publication statusPublished - 1 Dec 1996
Externally publishedYes

Keywords

  • Cellulose fibers
  • Hydrophilicity
  • Pretreatment
  • Ultra sound velocity
  • Zetapotential

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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